CN206891852U - A kind of cantilever bending fatigue experimental device and home position observation device - Google Patents
A kind of cantilever bending fatigue experimental device and home position observation device Download PDFInfo
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- CN206891852U CN206891852U CN201720576947.6U CN201720576947U CN206891852U CN 206891852 U CN206891852 U CN 206891852U CN 201720576947 U CN201720576947 U CN 201720576947U CN 206891852 U CN206891852 U CN 206891852U
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- loading
- home position
- bending
- position observation
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Abstract
It the utility model is related to a kind of cantilever bending fatigue experimental device and home position observation device；The cantilever bending fatigue experimental device available for microcosmic home position observation, including support frame, rotating mechanism and bending mechanism, rotating mechanism adjustment sample angle is observed, bending mechanism provides bending load and carries out fatigue test, fatigue crack microcosmic observation and imaging are realized with reference to light microscope and x-ray imaging home position observation, both the needs of miniaturization had been met, had been realized again to the microcosmic home position observation of sample 360 ° omni-directional.
Description
Technical field
Metal material performance test and analysis field are the utility model is related to, more particularly to it is a kind of available for microcosmic sight in situ
The cantilever bending fatigue experimental device and fatigue process crack nucleation process light microscope home position observation device examined and X ray into
As home position observation device.
Background technology
With developing rapidly for China's mechanical industry and Precision Manufacturing Technology, the security of plant equipment and part is by wide
General attention, fatigue rupture are one of main failure forms of mechanical part, and the fatigue behaviour of its material and part is that relation is set
A standby important indicator safe for operation.The fatigue behaviour of new material and part turns into the important evaluation of its service reliability
Hold.In order to which the fatigue behaviour to material and fatigue behaviour are deeply accurately studied, shown using light microscope, scanning electron
Micro mirror (SEM), AFM (AFM) and sigmatron technology on-spot study fatigue of materials failure behaviour turn into a kind of weight
The research mode and means wanted, microexamination in situ have unique advantage to the initial stages for understanding fatigue of materials.
It is larger that the equipment volume of fatigue of materials test is carried out at present, is not easy use synchronous with in-situ observation equipment.Even if
For the fatigue rig of small sample, existing equipment can only be former to sample to the unilateral of sample or local progress home position observation
The angular range of position observation has certain limitation.It is thus impossible to accurately, comprehensively observe the germinating of sample fatigue crack and split
The overall process of line extension.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of cantilever bending fatigue available for microcosmic home position observation
Experimental rig and fatigue process crack nucleation process light microscope home position observation device and x-ray imaging home position observation, it was both
The needs of miniaturization are met, are realized again to the microcosmic home position observation of sample 360 ° omni-directional, can also be set according to experiment needs
Fatigue testing specimen is counted, 360 ° of home position observations are carried out to the specific position of sample or the region of high stress.
To achieve the above object, the utility model provides a kind of cantilever bending fatigue examination available for microcosmic home position observation
Experiment device, including support frame, rotating mechanism and bending mechanism, it is characterised in that the support frame is by symmetrical upper and lower two
The crossbeam of side and the riser of the left and right sides surround；The rotating mechanism is arranged on the crossbeam of side, including is arranged at the horizontal stroke
Rotary drive motor, the rotation loading axis being connected with motor output shaft and the folder being arranged in the rotation loading axis on beam
Tool, the rotation loading axis are connected with the fixture through the crossbeam and are rotatably connected with the crossbeam；The bending
Mechanism is arranged on the riser of side, including bending loading motor, the loading connecting rod with loading motor output connection
And the load transducer on the loading connecting rod is arranged at, the loading connecting rod rotatably connects with described through the riser with it
Connect, the free end of the loading connecting rod is provided with rolling bearing；Wherein, the loading connecting rod is vertical with the rotation loading axis,
The rolling bearing center and the center of the fixture are on same vertical curve.
Preferably, the rotary drive motor and the bending loading motor are supported by the rotary drive motor respectively
Seat and loading motor support base are installed on the support frame, and the rotary drive motor support base and loading motor support base lead to
Cross bolt or be welded to connect in the support frame.
Preferably, in addition to controller, the rotary drive motor, the bending loading motor and load transducer with
The controller electric signal control connection.
Preferably, rotate loading axis and the loading connecting rod is rotatably connected by bending resistance bearing and the support frame
Connect.
To achieve the above object, it is in situ to provide a kind of fatigue process crack nucleation process light microscope for the utility model
Observation device, use the cantilever bending fatigue experimental device that can be used for microcosmic home position observation as described above.
To achieve the above object, the utility model provides a kind of x-ray imaging of sample Crack Extension in fatigue process
Home position observation device, use the cantilever bending fatigue experimental device that can be used for microcosmic home position observation as described above.
The beneficial effect of above-mentioned technical proposal of the present utility model is：
In such scheme, the device is portable, small volume, it is in light weight and high test efficiency can be comprehensive to sample microcosmic
Home position observation, available for the fatigue experimental device of microcosmic home position observation, the needs of miniaturization were both met, had been realized again to sample
The microcosmic home position observation of 360 ° omni-directional, it can also be needed to design fatigue testing specimen according to experiment, should to the specific position of sample or height
Power area carries out 360 ° of home position observations.
Brief description of the drawings
Fig. 1 is the structural representation for the cantilever bending fatigue experimental device that the utility model can be used for microcosmic home position observation；
Description of reference numerals：
1st, rotary drive motor；
2nd, rotary drive motor support base；
3rd, support frame；
4th, bending resistance bearing；
5th, fixture；
6th, sample；
7th, load transducer；
8th, loading motor is bent；
9th, connecting rod is loaded；
10th, loading motor support base；
11st, rolling bearing.
Embodiment
To make the technical problems to be solved in the utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing
And specific embodiment is described in detail.
As shown in figure 1, the utility model provides a kind of cantilever bending fatigue experimental device available for microcosmic home position observation,
Including support frame 3, rotating mechanism and bending mechanism, it is characterised in that the support frame 3 by it is symmetrical up and down both sides horizontal stroke
Beam and the riser of the left and right sides surround；The rotating mechanism is arranged on the crossbeam of side, including is arranged on the crossbeam
Rotary drive motor 1, the rotation loading axis being connected with motor output shaft and the fixture 5 being arranged in the rotation loading axis, institute
Rotation loading axis is stated to be connected with the fixture 5 through the crossbeam and be rotatably connected with the crossbeam；The bending mechanism
Be arranged on the riser of side, including bending loading motor 8, with the loading motor output connection loading connecting rod 9 and
The load transducer 7 being arranged on the loading connecting rod 9, the loading connecting rod 9 pass through the riser rotatable with it with described
Connection, the free end of the loading connecting rod 9 are provided with rolling bearing 11；Wherein, the loading connecting rod 9 and the rotation loading axis
Vertically, the center of rolling bearing 11 and the center of the fixture 5 are on same vertical curve.During experiment, sample 6 will be installed
Device be put in the viewing area of facilities for observation, carry out positioning, sample 6 loaded by bending loading motor 8 first, and
By the measurement of load transducer 7 and control load size, after completing loading, start rotary drive motor 1, sample 6 is carried out tired
Labor is tested, and is observed after the certain cycle of fatigue being observed region to sample, is obtained the correlated results of sample fatigue, realize
To the microcosmic home position observation of sample 360 ° omni-directional.
Specifically, as shown in figure 1, the rotary drive motor 1 and the bending loading motor 8 pass through the rotation respectively
Motor support base 2 and loading motor support base 10 are installed on the support frame 3, the rotary drive motor support base 2
By bolt or it is welded to connect with loading motor support base 10 in the support frame, easy for installation firm, reduction device shake
It is dynamic, improve precision.
Specifically, as shown in figure 1, also include controller, the rotary drive motor 1, the bending loading motor 8 and carry
Lotus sensor 7 is controlled with the controller electric signal and connected, and can be needed to design fatigue testing specimen according to experiment, specific to sample
Position or the region of high stress carry out 360 ° of home position observations, controller automatically controls, accurate controlled loading load and the anglec of rotation, real
It is accurate to test condition, observation angle is accurate.
Specifically, as shown in figure 1, rotation loading axis and the loading connecting rod 9 pass through bending resistance bearing and the carriage
Frame 3 rotatably connects, and avoids in loading procedure to equipment damage, extension device service life, improves equipment experimental precision.
To achieve the above object, it is in situ to provide a kind of fatigue process crack nucleation process light microscope for the utility model
Observation device, using the cantilever bending fatigue experimental device that can be used for microcosmic home position observation as described above, by metal material plus
Work is connected the one end of pole sample 6 with rotary drive motor 1 using fixture 5 into pole sample 6, the other end of sample 6 and the axis of rolling
Hold 11 with merging with load maintainer to be connected, apply load for sample 6, before on-test, adjusting sample 6, ensure sample 6 and rolling
Bearing 11 is coaxial, sets the load of sample 6 and the rotating speed of rotary drive motor 1, and sample 6 enters under conditions of cantilever bending is born
Row rotary bending fatigue test, the test section of sample 6 is placed on observation by light microscope region, sample 6 bears certain rotation
After flexural fatigue cycle, the rotating speed of rotary drive motor 1 is adjusted, 360 ° of complete observations are carried out to sample, study fatigue crack
Germinating and extended surface behavior.
Meanwhile can on sample Embedded defect, the fatigue crack initiation of ad-hoc location and extension can be observed, significantly
Facilitate the research of fatigue of materials crack nucleation and extension mechanism.
To achieve the above object, the utility model provides a kind of x-ray imaging of sample Crack Extension in fatigue process
Home position observation device, using the cantilever bending fatigue experimental device that can be used for microcosmic home position observation as described above, according to Fig. 1 handles
Sample is fixed on experimental rig by fixture 5, and the loading device for installing sample 6 is positioned in testing equipment, tries sample
Test section and be in Observable region, control and power line and the load transducer of loading motor 8 and rotary drive motor 1 will be bent
When 7 cables draw the experiment of X ray environment storehouse, start rotary drive motor 1, sample 6 is loaded, passes through load transducer 7
Monitors load size.Load holding is carried out after being loaded into certain load, drives sample 6 to rotate using rotary drive motor 1, simultaneously
Using the projection imaging function of X ray, the crack morphology inside sample is observed, sample during research fatigue loading
Crack Extension behavior.
Described above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of principle described in the utility model is not departed from, some improvements and modifications can also be made, these improvement
The scope of protection of the utility model is also should be regarded as with retouching.
Claims (4)
1. a kind of cantilever bending fatigue experimental device available for microcosmic home position observation, including support frame, rotating mechanism and curved
Bent mechanism, it is characterised in that the support frame is surrounded by the symmetrical crossbeam of both sides and the riser of the left and right sides up and down；It is described
Rotating mechanism is arranged on the crossbeam of side, including the rotary drive motor and motor output shaft that are arranged on the crossbeam connect
The rotation loading axis that connects and the fixture being arranged in the rotation loading axis, the rotation loading axis through the crossbeam with it is described
Fixture is connected and is rotatably connected with the crossbeam；The bending mechanism is arranged on the riser of side, including bending
Loading motor, the loading connecting rod connected with the bending loading motor output and the load sensing being arranged on the loading connecting rod
Device, the loading connecting rod are rotatably connected with described through the riser with it, and the free end of the loading connecting rod is provided with rolling
Dynamic bearing；Wherein, the loading connecting rod is vertical with the rotation loading axis, the rolling bearing center and the center of the fixture
On same vertical curve.
2. the cantilever bending fatigue experimental device according to claim 1 available for microcosmic home position observation, it is characterised in that
The rotary drive motor and the bending loading motor pass through the rotary drive motor support base and loading motor branch respectively
Support seat is installed on the support frame, and the rotary drive motor support base and loading motor support base pass through bolt or welding
It is connected to the support frame.
3. the cantilever bending fatigue experimental device according to claim 1 available for microcosmic home position observation, it is characterised in that
Also include controller, the rotary drive motor, the bending loading motor and load transducer with the controller telecommunications
Number control connection.
4. the cantilever bending fatigue experimental device according to claim 1 available for microcosmic home position observation, it is characterised in that
Rotation loading axis and the loading connecting rod are rotatably connected by bending resistance bearing with the support frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720576947.6U CN206891852U (en) | 2017-05-23 | 2017-05-23 | A kind of cantilever bending fatigue experimental device and home position observation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720576947.6U CN206891852U (en) | 2017-05-23 | 2017-05-23 | A kind of cantilever bending fatigue experimental device and home position observation device |
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| Publication Number | Publication Date |
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| CN206891852U true CN206891852U (en) | 2018-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720576947.6U Expired - Fee Related CN206891852U (en) | 2017-05-23 | 2017-05-23 | A kind of cantilever bending fatigue experimental device and home position observation device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108572116A (en) * | 2018-03-07 | 2018-09-25 | 南京航空航天大学 | Miniature thin plate fatigue experimental device and its working method |
| CN108982242A (en) * | 2018-07-30 | 2018-12-11 | 西南交通大学 | A kind of cantilever type rotating bending in situ fatigue test machine using X-ray three-dimensional imaging |
| CN109357962A (en) * | 2018-12-11 | 2019-02-19 | 中国民航大学 | A kind of side crops industry bending fatigue test device and method |
| CN109883847A (en) * | 2019-03-20 | 2019-06-14 | 西南交通大学 | Big load high-frequency original position stretching and fatigue tester based on x-ray imaging |
| CN112577810A (en) * | 2021-02-25 | 2021-03-30 | 中国科学院地质与地球物理研究所 | Deflection loading device and test equipment |
-
2017
- 2017-05-23 CN CN201720576947.6U patent/CN206891852U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108572116A (en) * | 2018-03-07 | 2018-09-25 | 南京航空航天大学 | Miniature thin plate fatigue experimental device and its working method |
| CN108572116B (en) * | 2018-03-07 | 2021-02-26 | 南京航空航天大学 | Miniature sheet fatigue test device and working method thereof |
| CN108982242A (en) * | 2018-07-30 | 2018-12-11 | 西南交通大学 | A kind of cantilever type rotating bending in situ fatigue test machine using X-ray three-dimensional imaging |
| CN109357962A (en) * | 2018-12-11 | 2019-02-19 | 中国民航大学 | A kind of side crops industry bending fatigue test device and method |
| CN109883847A (en) * | 2019-03-20 | 2019-06-14 | 西南交通大学 | Big load high-frequency original position stretching and fatigue tester based on x-ray imaging |
| CN109883847B (en) * | 2019-03-20 | 2023-09-26 | 西南交通大学 | X-ray imaging-based high-load high-frequency in-situ stretching and fatigue testing machine |
| CN112577810A (en) * | 2021-02-25 | 2021-03-30 | 中国科学院地质与地球物理研究所 | Deflection loading device and test equipment |
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |